Numbers whose base-11 representation has the same nonzero number of 2's and 7's.

Terms

a(0) =29a(1) =79a(2) =150a(3) =200a(4) =249a(5) =260a(6) =282a(7) =293a(8) =304a(9) =315a(10) =319a(11) =320a(12) =322a(13) =323a(14) =324a(15) =325a(16) =327a(17) =328a(18) =329a(19) =337a(20) =348a(21) =359a(22) =392a(23) =442a(24) =513a(25) =563a(26) =634a(27) =684a(28) =755a(29) =805